package cn.smbms.tools;

import java.io.IOException;
import java.io.InputStream;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

/**
 * 工具类
 * @author lzx
 *
 */
public class MyBatisUtil {
	//创建SessionFactory对象，读取配置信息
	private static SqlSessionFactory factory=null;
	static{
		try {
			InputStream is=Resources.getResourceAsStream("mybatis-config.xml");
			factory=new SqlSessionFactoryBuilder().build(is);
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	
	/**
	 * 返回session
	 * @return
	 */
	public static SqlSession createSqlSession(){
		return factory.openSession(false);
	}
	
	/**
	 * 关闭session
	 * @param sqlSession
	 */
	public static void closeSqlSession(SqlSession sqlSession){
		if(sqlSession!=null){
			sqlSession.close();
		}
	}
	
}
